Peter lord



(No Model.)

P. LORD. HAND DEVICE FOR IMPARTING ROTARY-MOTION.

' No. 463,371. Patented Nov. 17,1891.

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l J EL all a a \-\F 1 a C 75 I z E I I J L amwmtqz @fiw UNITED STATESPATENT FFICE PETER LORD, OF MONTREAL, CANADA, ASSIGNOR TO ANNIE BARRONCADVELL, OF SAME PLACE.

HAND DEVICE FOR IIVIPARTING ROTARY MOTION.

SPECIFICATION forming part of Letters Patent No. 463,3? 1, datedNovember 17, 1891.

Application filed August '7, 1891, Serial No. 402,006. (No model.)

To all whom it may concern;

Be it known that I, PETER LORD, of the city of Montreal, in the districtof Montreal and Province of Quebec, Dominion of Canada, have invented acertain new and useful Improved Hand Device for Imparting Rotary Motion;and I do hereby declare that the following is a full, clear, and exactdescription of the same.

This invention relates to means for imparting rotary motion by hand toscrew-jacks,

drills, capstans, &c., or for unscrewing and screwing bolts and nuts.

The device resembles a doubleaction ratchet-drill, in that it has avertical and transverse shaft, three bevel-gears, and ratchet and pawlmechanism; but its construction embraces changes and additions whichcarry it beyond thelimited sphere or usefulness of the ratchetdrill, theprincipal feature being an arrangement whereby a reversal of motion canbe secured. Another feature is the centralizing or balancing of theoperating parts, so that all liability to wabble is done away with,while an integral central vertical axis, which specially adapts thedevice for use in connection with lifting-jacks, forms a third feature.For full comprehension, however, of the invention reference must be hadto the annexed drawings, forming part of this specification, in whichlike symbols indicate corresponding parts, and wherein- Figure 1 is afront elevation of the device with operating-lever partly broken away;Fig. 2, a side view of same; Fig. 3, a vertical sectional elevation online a; 00, Fig. 1; and Fig.

4, a vertical sectional elevation on line .2 2', Fig. 2.

A is a central square block or hub pierced vertically to receive thevertical shaft or'spindle B, provided with a collar B and screwed boss Bon its upper end.

A A are spindle-arms projecting from the sides of the hub A, and with itconstituting the transverse shaft.

On the spindle B below the hub A is set a bevel-gear (I, held in placeby set-screw c, and on thearms A A are mounted loosely the integralbevel and ratchet or spur gears, the respective parts being lettered DDand D D.

E is the operating-lever situated centrally of the axis of the deviceand terminating at one end in fork-arms E E, which are perforated to;fit over projecting bosses d d on the ends of the spur-gears D D, theseveral parts on the arms A A being held in place by washers a a andscrews a a, as shown in Fig. 4. Each of the fork-arms E E carries a pairof pawls adapted to engage the spurgears D D, the left-hand pair beinglettered F F and the right-hand pair G G. The pawls are impelledinwardly toward the gears D D by retractile spiral springs H, connectingeach pair, and a shaft J, extending between and through the two arms E Eand having a crank-handle J on one end, carries cams K K on .oppositesides, so that when such crankhandle J is turned a half-circle one wayor another, right or left, as the case may be, one pawl of each pairwill, by said cams bearing against them, be thrown out of meslrwith saidspur-gears on opposite sides thereof, so that the remaining two will beleft in contact to rotate the gears in opposite directions to impart therequired rotation in one direction of the bevel-gear O and shaft orspindle B.

The crank-handle J is made flexible enough to accommodate itself to theelevated rim j and registering notches or depressions L N R in it on theface of one of the fork-arms, and when the crank-handle is located inthe notch N, all the pawls will engage with the spur-gears, by whicharrangement the device can be effectually locked.

In the present case I have shown the device fitted with parts for use inunscrewing and screwing nuts or bolts, such parts consisting of aconvenient handle M, screwed onto the boss B at the upper end of thevertical shaft or spindle B, and a square hollow cap 0, secured on thelower end of suchspindle by setscrew 0 and adapted to fit over the nutor head of the bolt to be moved.

As will readily be seen, both handle and cap can easily be replaced bydifferent forms of handle M and a cap similar to 0, but made to 10::

fit the head of the jack, be'substitute'd for it.

What I claim is as follows:

1. In a device for imparting rotary motion, the combination, with avertical working spindle, a bearing-block and two horizontalspindle-arms in the same line, bevelgears and ratchets or spur-wheels onsaid horizontal spindle-arn'ls, a bevel-gear on said vertical spindle,and an operating-lever having two fork-arms pivotally connected withsaid horizontal spindle-arms, of a pair of pawls pivoted on each of saidoperating-levefis forkarms and adapted to engage with said ratchets, andmeans fol impelling them both into and of throwing one pawl of each pairout of such engagement with said ratchets on oppo site sides thereof,for the purpose set forth.

2. In a device for imparting rotary motion, the combination of a centralhub having horizontally-projecting spindle-arms and a central verticalperforation, a vertical continuous or integral working spindle passingthrough said hub bearing in said perforation and provided withinterchangeable heads, bevel-gears, and ratchet or spur gears on saidspindle-arms, and a bevel-gear on said vertical spindle, and anoperating-lever and pawls carried by it for engaging said ratchets, asset forth.

3. In a device for imparting rotary motion, the combination of a centralperforated bearin g-block having two horizontal spindle-arms on oppositesides, a vertical workil'ig spindle passing through said perforatedbearingblock, a bevel-gear on said vertical spindle, bevel-gears andratchet or spur gears on said spindle-arms, an operating-lever the axisof which coincides with the axis of said work ing spindle, and havingtwo fork-arms pivotally connected with said spindle-arms, and pawlscarried by said fork-arms and adapted to engage said spur-gears, as setforth.

at. In a device for imparting rotary motion, the combination, with acentral perforated bearing-block havingitwo horizontal spindle-arms onopposite sides, a vertical working spindle passing through saidperforated bearing-block, a bevel-gear set rigidly on said workingspindle, integral bevel gears and ratchet or spur gears mounted looselyon said spindle-arms, an operating-lever having two fork-arms pivotallyconnected with said spindle-arms, and pawls carried by said fork-armsand adapted to engage said spur-gears, as set forth.

5. In a device for imparting rotary motion, the combination, with avertical working spindle, a bearing-block with horizontal spindlearms,bevel and ratchet or spur gearings, and an operating-lever, of a pair ofpawls carried by, said lever, and means for impelling them both into anda rotary cam-shaft for throwing either of said pawls out of engagementwith the ratchet part of said gearing, for the purpose set forth.

6. In a device for imparting rotary motion, the combination, with avertical working spi ndle, a bearing-block with horizontal spindlearmsin the same line, integral bevel-andspnr gearing mounted loosely on saidhorizontal spindlearms, a bevel-gear on said vertical spindle, and anoperating-lever having .two fork-arms pivotally connected with saidhorizontal spindle-arms, of a pair of pawls pivoted on each of saidoperating-levers forkarms and adapted to engage with said ratchets,means for impelling said pawls into such engagement, and a rotary shaftcarrying lugs or projections on opposite sides adapted to bear againstand throw one pawl of each pair of same out of such engagement with saidratchets on opposite sides thereof, for the purpose set forth.

Montreal, July 24:, 1.891.

PETER LORI).

